The Trap,drainage Pipe, cataloged under National Stock Number 4730-00-267-3073, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-267-3073 |
| Item Name | Trap,drainage Pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Connection Style | DRAINAGE (PIPE) ALL ENDS |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Style Designator | P-TRAP WITH CLEAN-OUT |
| Material Document and Classification | ASTM A126 CL A ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Size | 4.000 INCHES ALL ENDS IN |
| Specification/standard Data | 96906-MS90528 GOVERNMENT STANDARD |
| Material | IRON OVERALL |
| Thread Series Designator | NPT ALL ENDS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| WW-P-491 | 5/9 Secondary reference U.S. Government activity |
| MS90528-5W1 | 5/9 Secondary reference U.S. Government activity |
| ASME B16.12 | 3/1 Design control — primary reference The American Society of Mechanical Engineers |
NSN 4730-00-267-3073 is a Trap,drainage Pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4730-00-267-3080. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-00-267-3073: Connection Style: DRAINAGE (PIPE) ALL ENDS; Connection Type: THREADED INTERNAL PIPE ALL ENDS; Style Designator: P-TRAP WITH CLEAN-OUT; Material Document and Classification: ASTM A126 CL A ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 8 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.